This is for my use of a trapezoidal method of numerical integration procedures.
这是我编的一个利用梯形法数值计算积分的程序。
Three methods for gravity field recovery are mainly studied from the views of observation equation, (1) numerical differential method, (2) energy balance approach, (3) numerical integration method.
从建立观测方程的角度来说，主要研究了三种恢复地球重力场的方法：(1)数值微分法，(2)能量守恒法，(3)数值积分法。
The ordinary numerical integration method has only been adopted for the analysis of the stability of steel members so far due to its limitations of handling technology and its slow computative speed.
目前，数值积分法在结构分析中的应用本质上没有突破构件的范畴，其主要原因是技术处理存在局限性，计算速度难以使人接受。
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